Icom ID-31A

Icom ID-31A firmware

Icom · ID-31A · ID-31A

Latest firmware for the Icom ID-31A is vE2 (May 15, 2012).

Specifications

ID-31A specifications

Figures for the ID-31E.

Type
Amateur UHF transceiver
Frequency range
TX: 430-440 MHz / RX: UHF
Modes
FM / NFM and DV (GMSK: 4.8 kbps voice), Improved DR-mode
Show the full specification

General

Mode
FM / NFM and DV (GMSK: 4.8 kbps voice), Improved DR-mode
Type
Amateur UHF transceiver
Weight
? g (? oz)
Power supply
? VDC
Tuning steps
5 / 6.25 / 8.33 / 9 / 10 / 12.5 / 15 / 20 / 25 / 30 / 50 / 100 / 125 / 200 KHz
Other features
D-Star concept. Built-in GPS. CTCSS/PL and DTCS Micro SD card slot. 128*64 dot-matrix display IPX7 waterproof.
Frequency range
TX: 430-440 MHz RX: UHF
Dimensions (W*H*D)
58*95*25 mm (2.28*3.74*0.98")
Frequency stability
Max ? ppm
Repeater shift / offset
Programmable
Antenna impedance / connector
50 ohm / SMA
Current drain / power consumption
RX: ? mA TX: ? A

Miscellaneous

Manufactured
Japan, 2011-201x (Discontinued)

Receiver Section

Receiver system
? conversion superheterodyne
AF output power / speaker
? mW at ?% distortion / ? ohm

Transmitter Section

RF output power
HighLow 3Low 2Low 1 70 cm:5 W? W? W? mW
Spurious emissions
Better than -? dB
Microphone input level
? mV
Max FM deviation (Factory set)
±? KHz
Max AM modulation (Factory set)
No AM
Microphone impedance / connector
? ohm / ?-pin

Changelog

ID-31A firmware changelog

  1. vE1 vE2

  2. vE1 first tracked Improves DV mode TX audio quality and weak signal readability, adds Canadian version support.

Firmware history

All versions below were published by Icom on icomjapan.com, icomamerica.com, icomeurope.com and icom.co.jp. Third-party and modified firmware is never listed.

  1. Version E2 Latest Released May 15, 2012 First seen Sep 6, 2026

    Source: icomjapan.com

    Show release notes

    Major function improvements-

    DSP

    Release notes & download
  2. Version E1 Released Feb 17, 2012 First seen Sep 7, 2026

    Improves DV mode TX audio quality and weak signal readability, adds Canadian version support. — summary by updatemystuff.com

    Source: icomjapan.com

    Show release notes

    Major function improvements-

    TX Audio quality on the DV mode.

    Improved readability on receiving weak RF signal in DV mode.

    Canadian ​version is added.

    Optional OPC-2218LU data cable is required.

    The firmware update is NOT available through a microSD card.

    This firmware update is for both CPU and DSP.

    Make sure the version numbers of firmware before updating the firmware.

    Please read "Firmware update information" (760KB) thoroughly and make sure of what is required for the firmware update.

    Never turn off the transceiv​er power or disconnect the data cable while the updating is being performed.

    Save the setting data, memory data and repeater list of your transceiver to a microSD card or to the PC with the CS-31 cloning software before performing the firmware update.

    Fully charge the battery before updating firmware in order to avoid power failure during update work.

    Release notes & download

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